Electric signal-lamp.



A. K. MILLER.

ELECTRIC SIGNAL LAMP.

APPLICATION FILED DEG. 20, 1912.

Patented June 10, 1913.

wi/iwvwoeo mm m ARTHUR K. MILLER, 01 PEEKSKILL, NEW YORK.

' nnncrnrc SIGNAL-LAMP.

Specification of Letters Patent.

Patented June 10, 1913-.

Application filed December 20, 1912. Serial No. 787,792.

To all whom it. may concern:

Be it known that I, ARTHUR K. MILIER, a citizen of theUnited States, and resident of Peekskill, in the county of Westchester and State of New York, .have invented certain new and useful Improvements in Elect-ric Signal-Lamps, of which the following is a specification.

My invention relates to an improved construction of electric signal lamps, and pertains more particularly to tail lamps for motor cars.

The object of my invention is to provide a simple and eflicient tail lamp construction having a small number of parts, which may be easily adjusted and readily replaced by the user in case of damage; and also to provide an electric, rear signal lamp for motor cars having a bracket adapted so be attached' to the car and to which bracket a globe is adapted to be directly, attached in such manner that the globe may be rotated to any desired position to throw a white light on a license number irrespective of the location of the latter on the back of the car. For automobile tail lamps I provide the globe with the longer segment or major arc thereof of red color, to show a signal from the greatest number of angles of approach, as when the car is turning either around a corner or in the road, a clear pane of glass of the globe through which the white light shows being placed substantially across the transverse axis ofthe globe, whereby the white light may be directed to desired *positionby merely rotating the globeon the bracket and securing the parts together.-

In carrying out my invention I provide a bracket adapted to be attached to any desired part of the motor car, such as at the rear,'a support for a lamp carried by the bracket and projecting into or through a .chamber on one side of the bracket, 9. protecting globe for such lamp havinganeck rotatively fitted to said chamber, said globe having aclear pane of glass on one side and means for retainingthe globe in set position upon the bracket. In the particular embodiment of my invention illustrated in the accompanying drawings, I provide the neck of the globe with a groove containing a ring, and upon said neck, between the globe and the ring, is rotatively mounted a v nut adapted to engage threads upon said bracket, which ring retains the nut upon the neck and serves with the nut to retain the neck :upon the 'bracket. By preference said ring is made. resilient, and the end of p the neck fits against a resilient gasket whereby the neck is held firmly, yet resiliently, upon the bracket, thereby aflordi'ng an airtight and dust proof joint between the neck and .the bracket. I have also shown the support for the lamp as made hollow, through which the lamp terminals pass, and which support is filled with insulating ma terial, whereby, in conjunction with the tight fit of the neck against the gasket, the interiorof the globe is rendered dust-proof to keep the inner wall of the globe and the glass pane clean.

My invention further comprises novel details of improvement and combinations of parts that will be more fully hereinafter set forth and then pointed out in the claims.

' Reference is to be had to the accompanying drawings forming part hereof, wherein, Figure 1 is a vertical section of an electric lamp embodying my invention, and Fig. 2

is a section on the line 2, 2, in Fig. 1.

In the drawings the numeral 1 indicates a bracket shown provided with .apertured extensions 1 for securing the same in position, which bracket is provided .on one side 6, to which the threaded :base .of the lamp is detachably connected. To socket '6 a conductor 7 is secured, .and a conductor 8 is connected to 1 a terminal 9 carried by socket 6 and insulated therefrom by insulation. 10.

Within support '3 is insulation 11 serving to secure the parts v5, 6, 7 and -8 firmly in support .3. The bracket has opening 1 for the :passage of conductors 7, 8. By .the

zmeans described the "lamp. is made water and dust-tight and chafing and short cir- -.cuiting of the wires 7,8, is prevented, since the gasket being clamped at the inner end of the neck and the insulation filling support :3, serve to prevent the-entrance of dust and water, and insulation :firmly embedding ceiving a resilient ring 16. Ring 16 is shown in the form of a spiral wire winding, made endless by joining its ends together, and adapted to be sprung into roove 12 for retaining said ring upon nec 12*. At 17 is a nut fitted upon the annular .portion' 12 of neck 12", between rin 16 and the globe, whereb said nut is ree to rotate upon the nec and is retained rotatively" thereon by ring 16. Said nut is shown pro-- vided with exterior threads adapted to engage interior threads upon cham er 2.

-Globe 12 may be made of any desired color, such as red or green,'for indicating corresponding signals, or may beclearglass coated on the inside with any desired coloring material, and the glass 14 may beclear, whereby a white light from glass 14 may be thrown in a particular-direction, such as upon a license plate on, an automobile, while the contrasting color of globe 12 may indicate danger, or other desired signal, particularly where such globe is of red color. The pane 14 may be of flat glass or a lens, and may be cemented in the neck 12, or otherwise attached to the globe, or may be made in a single piece with the globe, where the globe is of substantially clear glass signal color eflcct. 1

To assemble the parts support 3 is placed within chamber 2 as shown in Fig. 1, gasket 15 being placed upon flange 3, then the neck of the globe, carrying ring 16 and the nut 17, is placed into the chamber and the nut screwed to the chamber so that the inner end of the nut bears upon ring 16, thereby; forcing the-inner end of the neck against the asket and holding the arts firmly toget er. By means of the res' ieht ring 16 the pressure of nut' '17 'is transmitted 'resili ently to the glass 'of'neck '12P, andahence by such means in conjunction with the flexible gasket 15 the lobe is resiliently supported upon the brac et to prevent "fractureby pressure of the parts, vibration,etc. It also will be understood that by means of my improvements the globe may readily be adjusted in a circular directionfto any desired; angle or position, so thatthe light from glass pane 14'may be projected at any'desired point around the axis of'thevglobe and bracket- Furthermore, b means of such universal adjustment of t e globe with respect to the bracket 1 the latter may be secured inany desired position, as upon the top, side or rear portion of the frame. or body of an automobile, without-re uiring any addltional support for such brac et, although, of course, the bracket 1 ma be attached to a support secured upon t e automobile. Likewise, m improved lam besecured upon any esired portion 0 a car or other vehicle where it is desired to use the lamp. v

' Having now described my invention what I'claim'1s:

' 1. An electric tail lamp comprising a bracket, a ,supportjfor aniele'ctric lamp, a globe havin'g'a neck adapted to receive said support, saidglobe" being provided with a clear pane, a nut rotatively mounted upon said neck, and means on said neck to retain said nut thereon forsecuring said globe upon said bracket. 1 1

2. An electric tail lamp, comprising a bracket, a support foran electric lamp, a colored globe vhaving a neck adapted to receive said support, said lobe being provided at one side of the axis 0 the globe and neck with a clear pane, a nutrotatively mounted upon said neck, and means on said neck to retain said nut thereon for securing said globeupon said bracket.

3. An electric tail lamp comprising a bracket, a hollow support for an electric lamp provided with means to retain a lam thereon, conductors extending through sai support from said retaining means, insulation withinsaid su port embedding said conductors, a globe aving a neck receiving said support, and means for detachably retaining said globe upon the bracket. stained on the inside to produce the desired 4.- An electric, tail lamp comprising a bracket having a chamber on one side communicatin with an opening in line with said cham er, a hollow su port. upon the bracket, a lamp socket earned by the support, conductors extending through the support from said socket,insulation within the support embedding; Qs'aid conductors, said conductors passing throughfsaid. opening in may the bracket, a globe-having a neck receiving said support, and meansfor detachably retaining said'globe upon the'bracket.

' 5'. An electricftaillamp comprising a bracket having a chamber on one side coman opening in line with municatinglwlth r, ahollow support upon the said cham bracket, a lamp socket carried by the support, conductors extending through the support'from saidsocket, said conductors'pass mg. through said 0 ening in the bracket, a *globejhavm a nec recelving saidsupport, anutrotatwely mounted upon the neck,

meansjiforretaining the nut .upon the neck,

and means for 'detachably connecting the -nut with said chamber for retaining said globe adjustably upon the bracket.

globe in position.

7. A lamp comprising a bracket having a chamber on one side and having an interior flange, a support for an electric light having a flange to fit upon the first named flange, a globe having a neck fitting said chamber and opposed to said flanges, a nut rotatively fitted upon said neck, said neck being provided with a groove, and a resilient ring within said groove opposed to the inner end of said nut, said nut and chamber having threads for retaining the nut thereon and holding the nut against said ring.

8. A lamp comprising a bracket having a chamber on one side and having an interior flange, a support for an electric lamp having a flange to fit upon the first named flange, a globe having a neck fitting said chamber and opposed to said flanges, a nut rotat-ively fitted upon said neck, said neck being provided with an "annular prising a spiral winding fitted in said groove, said nut and chamber having threads to retain the nut on the chamber, said nut roove, a ring combearing against said ring to hold'the neck upon "said flanges to retain said globe and support upon said bracket.

9. A lamp comprising a bracket having a chamber on one side and having an interior flange, a support for an electric lamp having a flange to fit upon the first named flange, a globe having a neck fitting said chamber and opposed to said flanges, a nut rotatively fitted upon said neck, said neck being provided w th an annular groove, a ring comprising a spiral winding fitted in said groove, said nut and chamber having threads to retain the nut on the chamber, and a gasket interposed between the flange of said support and. the inner end. of said neck, said nut bearing against said ring to hold the neck upon said gasket to resiliently retain said globe and support upon said bracket.

10. A lamp comprising abracket provided with threads, at substantially spherically shaped globe having a neck provided with a groove, a resilient ring fitted on said neck in said groove, and a nut rotative upon and carried by said neck between the ring and globe and adapted to retain said globe adustably upon said bracket.

Signed at New York city, in the county of New York, and State of New York, this. 14th day of December A; D. 1912.

, ARTHUR K. MILLER. Witnesses:

T. F. BOURNE, RALPH H. Russian. 

